10th GSEB Science And Technology MCQ 1

SSC Science and Technology Quiz 1

Quiz

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1. ........... lens is used to correct the defect of vision termed as presbyopia.
   1.   Convex
   2.   Bifocal
   3.   Contact
   4.   Biological
2. Which of the following is used in production of water gas ?
   1.   Coal gas
   2.   Coke
   3.   Pure Water
   4.   Sodiam
3. Which instrument is used to know the presence of an electric current?
   1.   Galvanometer
   2.   Micrometer
   3.   Voltmeter
   4.   Nenometer
4. Due to which phenomenon of light does a tyndall effect result?
   1.   Refraction
   2.   Scattering
   3.   Reflection
   4.   Dispersion
5. Which of the following solution is having pH = 2 ?
   1.   0.001M HCL
   2.   0.001M NaCI
   3.   0.01M HCI
   4.   0.01M NaCI
6. The SI unit of electric charge is .............
   1.   coulomb
   2.   volt
   3.   ampere
   4.   watt
7. 250 ml aqueous solution is prepared by dissolving 4 moles of HCI in water, what will be the molarity of the solution ?
   1.   12M
   2.   11M
   3.   14M
   4.   16M
8. In human eye, the image of an object is formed at ............
   1.   Iris
   2.   Pupil
   3.   Cornea
   4.   Retina
9. Poles of Mars are covered by ...............
   1.   dry-ice
   2.   Nitrogen
   3.   Mix-ice
   4.   Hidrogen
10. Who had first observed the magnetic effect of an electric current?
    1.   Volta
    2.   Ampere
    3.   Faraday
    4.   Oersted
11. Which of the following is strong acid ?
    1.   NaCI
    2.   NH₄ CI
    3.   H₂ SO₄
    4.   CH₃ COOH
12. What is the molecular formula of ethyne?
    1.   C₂H₂
    2.   HNO₃
    3.   CH₄
    4.   H₂ O
13. Distance of geostationary satellite from the earth's surface is .......... km.
    1.   53,786
    2.   35,786
    3.   38,765
    4.   36,785
14. ................. is the most brilliant planet of the solar system.
    1.   Venus
    2.   Jupiter
    3.   Earth
    4.   None
15. Which of the following is an alloy?
    1.   22 carat gold
    2.   All
    3.   18 carat gold
    4.   24 carat gold
16. What is periodic time of Halley's comet?
    1.   67 Years
    2.   76 Years
    3.   79 Years
    4.   69 Years
17. Non metal-oxide + Base --> ..............?
    1.   Salt + Water
    2.   None
    3.   Salt + Base
    4.   Base + Water
18. 1 meter = ............ nanometer.
    1.   10^-10
    2.   10¹⁰
    3.   10^-9
    4.   10⁹
19. Which of the following material has maximum optical density?
    1.   Diamond
    2.   Water
    3.   Glass
    4.   Oil
20. Diameter of hydrogen atom is ............ n.m .
    1.   1.0
    2.   0.01
    3.   1.01
    4.   0.1
21. The unit of electric potential difference is .............
    1.   J/C
    2.   J
    3.   C/J
    4.   J.C
22. By which reaction metal is obtained from metal oxide?
    1.   Reduction
    2.   Consumption
    3.   Diduction
    4.   Multiplication
23. 1μA = ..........mA
    1.   10⁸
    2.   10^-3
    3.   10^-8
    4.   10³
24. The distilled water acts as .......... for the electricity.
    1.   Semi-conductor
    2.   Semi-insulator
    3.   Insulator
    4.   Conductor
25. Which acid is called king of chemicals?
    1.   HNO₃
    2.   Na₃ AIF ₆
    3.   HCI
    4.   H₂ S0₄
26. Which of the following oxides is of neutral nature?
    1.   SO₂
    2.   H₂O
    3.   N₂O
    4.   CO₂
27. What is the chemical formula of Cryolite?
    1.   NaAIF₆
    2.   NaAI₃ F₆
    3.   Na₃ AIF ₆
    4.   NaAIF₃
28. Which coloured wire is used for earthing?
    1.   Yellow
    2.   Red
    3.   Green
    4.   Black
29. Which nonmetallic element is in liquid form?
    1.   Bromine
    2.   Carbon
    3.   Nitrogen
    4.   HCL
30. The focal length of plane mirror is ..............
    1.   Uncertain
    2.   Equal to object distance
    3.   Infinity
    4.   None